gr5

You also have retractions on those layers. I'm guessing you enabled "z hop when retracted". Turn that off. z hop is meant for delta printers. 99.99% of printers are not delta printers so you probably don't have one. z hop causes the z axis to move the nozzle farther from the print and then back and due to backlash you have inconsistent results where some layers overextrude (hence squish the next layer so it sticks out and makes a line) or underextrude (nozzle slightly too far from print so you get a layer that is thinner and sticks in and makes an inward line).

uncheck "enable coasting". Almost certainly that gap is caused by "coasting". It could be many other things so if it's not coasting please go to menu "file" and do "save..." and upload the resulting project file. Project files contain the machine settings, model, model scale and position and more, and the material settings, the profile, and settings you overrode.

Wow. wow. Well first of all, at first glance, that part doesn't need any support. Or possibly only at the top of the dome. So I'd set the "support overhang angle" to 80 and change "support placement" to "touching buildplate". Those holes in the wall shouldn't need any support. Now regarding why it's putting support on the outside. I think this happens when you have the "normals" wrong. Or alternatively you may have a large number for "support horizontal expansion". For this particular model I think that can be just 1mm or even 0. Cura has an amazing plugin to test your model to see if something is wrong with it and can repair a very few of the many potential problems: In the upper right corner of Cura click "marketplace" and make sure you are on the "plugins" tab and install "Mesh Tools". Then restart Cura. Now right click on your model, choose "mesh tools" and choose"fix model normals" to see if that helps.

Whatever part of David is touching support is going to be imperfect. So I'd print him laying on his back. Angled a bit so his head is almost touching the glass. Will he fit that way? Maybe diagonal with his head in one corner if you want him as big as possible. This way all the "ugly" support surfaces will be on his back where people are less likely to look. Also, typically, that means much less support. If you decide not to do that then at least use the support blocker feature to block any support on his head other than his chin. You don't need support for his nose or hair or ears as they barely stick out at all. https://support.ultimaker.com/hc/en-us/articles/360012869379-How-to-block-support-generation-in-Ultimaker-Cura

Okay. "can't open port". Almost surely that means something else has it open. Maybe there is a hidden, crashed copy of cura running. Look for any processes that might have decided to open/claim that port. Some program that uses serial ports like Putty or 1000 other programs that deal with serial ports. Maybe in windows there is a way to see which process has claimed the port? Google it? Any copies of cura or other 3d printing software or... I don't know - I had gps software once that talked through a serial port to my gps receiver. That would steal the COM ports as well. Make sure only one copy of Xload is running as well.

You have a delta printer! Cool. It slices fine for me as you can see below. I didn't change a thing. Did you click the slice button in the bottom right corner? Did you then switch to PREVIEW mode (I guess you did as stated in the original post). It says it will need 5.1 meters of filament. Does it show that (just above the slice button)? Hmm. Maybe try a different computer? I used cura version 4.8. I assume you used the same? Not that it should matter.

What happens if you save onto your local hard drive and then use your operating system to copy the ufp file (which contains the gcode) to the SD card?

Sometimes when updating an arduino style computer you have to power cycle things with the right timing. So if fixing the baud rate isn't enough then try power cycling the printer and starting the upload right when the lights come on (a portion of a second after turning on power).

Wrong baud rate. Read my posts again.

When I hear "plugin" I think "cura plugin" but this has nothing to do with Cura, right? It's basically an app that would install onto an S3. I should warn you that I believe (not 100% certain) that developer mode on the S3 is disabled on the newer versions of the S3 firmware. Without developer mode there is no ssh/scp access to the printer. So I'm not sure how you would get this software installed onto the S3 - that may be quite difficult without scp/ssh access. You might do better to have this app install on the S5 which I don't think has lost developer mode yet. @ahoeben @robinmdh thoughts?

Okay I looked at your model. It looks fine. It slices fine for me. Maybe post your project file - do "file" "save..." and post that file here. It will include your machine settings, model positioning, cura profile, overridden settings, material settings, model scaling, etc.

Your model is almost certainly not manifold. I didn't look but I've used sketchup and it's all too easy to throw up some walls where one wall just doesn't quite connect. Or I forget to add a "floor" under all the walls. More information here: https://i.materialise.com/blog/3d-printing-with-sketchup/

If you do install the "tinkerMarlin" make sure you do a "FACTORY RESET" on the front of the printer - otherwise it will have strange behaviours.

1) Try a different computer. Maybe you have a friend and you can borrow a laptop? 2) Try different software. You need the ".hex" file that is correct for your printer. You can get them here for example: https://github.com/TinkerGnome/Ultimaker2Marlin/releases And various software can install the hex file such as pronterface/printrun: http://koti.kapsi.fi/~kliment/printrun/ I have had better luck installing over USB cable using pronterface than I have using Cura. In pronterface set the baud rate to 115200. You can also try an older simpler cura (version 15.04) but I still have had better luck with pronterface. Cura 15.04 (windows only): https://gr5.org/Ultimaker_Cura-15.04.06.exe

More replies: https://www.formfutura.com/shop/product/reform-rpla-2838 Nylon fish nets recycled to filament: https://fishyfilaments.com/ Note that PLA gives you the best quality prints and is the easiest to print. Other plastics need higher temperatures and if they are printed at higher temperatures then they shrink more as they cool and start to get more difficult if you don't have a heated bed or might even need a heated chamber. What kind of printer do you have? Does it print higher temp materials than just PLA?

Actually now that I think more - it should work on Y fittings as well. As long as the openings to the fitting either face up (roof) or down (floor). Hmm. I guess it's complicated the tip of the "V" in the Y is a roof I suppose. Maybe it won't work well. I'm not sure.

The support blocker needs to cover the red area at the *top* of where the support goes - where the support is supporting. Is that clear? Don't put the support blocker where the support is - put the blocker where the "roof" or "overhang" is that is "red" in PREPARE mode.

Yeah support gets confused sometimes but not to worry - you don't need support there (maybe you don't need it anywhere can can turn it off). You can disable that support with the support blocker feature yet still allow support on other features: https://support.ultimaker.com/hc/en-us/articles/360012869379-How-to-block-support-generation-in-Ultimaker-Cura

Every country is different but in most countries electricity is moving to 100% renewables (slowly). So why not slowly move transportation to electricity at the same time as moving your grid to renewables. Buying electric cars slowly signals the industry to switch over and this takes decades. So it's good to "start" moving the auto industry now even if short term, for some countries, it's less efficient.

It works fine for me. This is strange. You can't select the model? After the model loads, on a PC type ctrl+a (mac is command A) - this selects all models (but you only have one so that's perfect). Then use the tools on the left side of the screen to scale it down to only be 2540%. Then using the move too above make sure Z position is set to zero. Now it should be visible. If not click "slice" anyway and see if it's visible in PREVIEW mode.

I loaded your project. You don't need any support for this model. Just turn it off.

I have no idea what you mean by "supports appearing in thin air". Can you please post a Cura screenshot showing the problem? Also rather than attach STL files, it's better to attach a project file. A project file will include your machine (printer) settings, your STL, the profile you used, the material profile you used, and the settings you chose to override. That way we can open your project file, hit slice and see exactly what you see. To create a project file do "file" "save...".

I'm told it's called "rPLA". "recycled PLA": https://www.google.com/search?q=rpla+filament

Please post the EXACT ufp file that gets this error so I can look at line 146. If the file is gone then please post the ufp file the next time this happens. Can you prove that it's the same olimex card? For example if you had configured the old one for your wifi network but not the new one yet the new one already knew about your network? Usually if a vendor says they replaced something, they did.

The picture just above you can see the hat looks like it was copper worked with a ball hammer, lol. That's what happens when you reduce the triangles. But those surfaces get lost when you 3d print it. Unless you are doing a huge pikachu as big as a human.